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BioMed Research International
Volume 2015 (2015), Article ID 897971, 9 pages
http://dx.doi.org/10.1155/2015/897971
Research Article

Gender-Specific Associations of Serum Antibody to Porphyromonas gingivalis and Inflammatory Markers

1Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Kyushu University Faculty of Dental Science, Fukuoka 812-8582, Japan
2Department of Preventive Dentistry and Dental Public Health, School of Dentistry, Aichi-Gakuin University, Nagoya 464-8650, Japan
3Japanese Red Cross Kumamoto Healthcare Center, Kumamoto 861-8528, Japan
4Section of Periodontology, Division of Oral Rehabilitation, Kyushu University Faculty of Dental Science, Fukuoka 812-8582, Japan

Received 28 October 2014; Revised 24 December 2014; Accepted 24 December 2014

Academic Editor: Kazuhiko Nakano

Copyright © 2015 Michiko Furuta et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

It remains unclear whether serum antibody titer against Porphyromonas gingivalis (Pg) and inflammatory components lead to periodontal deterioration in each gender, as periodontal and systemic status is influenced by gender. The present study investigates the gender-specific probable effects of titer against Pg and inflammatory markers on periodontal health status in a longitudinal study. A retrospective study design was used. At two time points over an 8-year period (in 2003 and 2011), 411 individuals (295 males with a mean age of 57.6 ± 11.2 years and 116 females with a mean age of 59.2 ± 10.3 years) were surveyed. Periodontal status, serum antibody titer against Pg, and high-sensitive C-reactive protein (hsCRP) were evaluated. Poisson regression analyses revealed that the elevated titer against Pg and hsCRP significantly predicted the persistence of periodontal disease 8 years later in females with periodontal disease in 2003. Elevated hsCRP was significantly associated with the incidence of periodontal disease 8 years later in females who were periodontally healthy in 2003. Males had a weaker association among titer against Pg, inflammatory markers, and periodontal disease. These findings suggest that immune response to Pg infection in addition to inflammatory components affects periodontal deterioration in females.